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Date:      Wed, 11 Mar 2015 21:35:34 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 195458] Hang on shutdown/root unmount after FreeBSD 10.1R upgrade
Message-ID:  <bug-195458-8-9Bu5aohG43@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-195458-8@https.bugs.freebsd.org/bugzilla/>
References:  <bug-195458-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195458

--- Comment #63 from Konstantin Belousov <kib@FreeBSD.org> ---
(In reply to Glen Barber from comment #62)
You should add WITNESS_SKIPSPIN kernel option, it is known that console
spinlocks are not in order.

So for the attachment id=154224, is it possible to do show mount and show mount
<addr> for the root mp ?

You can 'set $lines 0' to disable pager in ddb.

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